The articles on this blog are excerpts and summaries of some of the academically original content published in the books 'Relativistic Universe and Forces'(ISBN 979-8865126171) or '상대론적 우주와 힘'(ISBN 9791172187644).…
Using special relativity, I succeeded in mathematically proving the cosmological principles regarding the uniformity and isotropy of the universe. The particle density distribution, centered on itself in all primordial inertial systems in this universe, was calculated as $$\frac{1}{8} \left( \frac{r}{1 - r} \right)^2$$ in polar coordinates. ---- Originally in English